Conditional Barriers
by CrawKatt
Conditional Barriers lets players pass through barrier blocks according to configurable rules, so map makers can decide who may walk through a barrier.
What it does
Barrier blocks stay impassable for everyone by default. The mod adds rules that decide who may pass through them, based on game mode, permission level, player name, UUID or scoreboard tags. Rules can be changed in a configuration file and reloaded with in-game commands, so a server does not need a restart. Commands that manage the mod require permission level 2 or higher.
The mod also lets other mods register their own conditions through its developer API, so outside logic can control barrier access. Players who are allowed through a barrier are kept from suffocating inside it. Conditional Barriers is built on Fabric and must be installed on both the client and the server, since barrier blocks have to behave as non-solid on the client for movement to stay smooth. Conditional Barriers requires Fabric API on Fabric. Files target 1.21.1 only, and the code is under the MIT License, so the project is open source.
Key features
Configurable pass rules
Barriers can be opened to players by game mode, permission level, name, UUID or scoreboard tag.
Developer API
Other mods can register custom conditions that decide whether a player may pass a barrier.
In-game commands
Commands reload the configuration and manage the mod's state without restarting the server.
Suffocation protection
Players allowed through a barrier do not suffocate while standing inside it.
Forced access
A specific player can be forced to pass barriers regardless of the other rules.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Map makers and server administrators who want fine-grained control over which players can walk through barrier blocks. Mod developers can use the API to add their own access logic.
Questions
Does Conditional Barriers need Fabric API?
Must the server and clients both install Conditional Barriers?
Which commands require operator permissions?
In the catalog
Conditional Barriers is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 32,366 mods support Minecraft 1.21.1.
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What the author says
ConditionalBarriers is a Fabric mod for Minecraft that allows players to pass through barrier blocks based on configurable rules or external conditions via an API. By default, barrier blocks are impassable for everyone. This mod changes that by allowing fine-grained control over who can walk through them, making it…
Official listing
- Modrinth page
- modrinth.com/mod/conditional-barriers
- Owner
- CrawKatt
- Published
- 2026-03-31
- Updated on Modrinth
- 2026-08-09
- Facts verified
- 2026-10-15